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公开(公告)号:US3231661A
公开(公告)日:1966-01-25
申请号:US20630662
申请日:1962-06-29
Applicant: PHILIPS CORP
CPC classification number: G10H1/0555 , G10H1/02
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公开(公告)号:US3084328A
公开(公告)日:1963-04-02
申请号:US81586359
申请日:1959-05-26
Applicant: PHILIPS CORP
Inventor: JAN GROENEVELD YME BOUWINUS FO , ALBERT POTJER AILDERT
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